Electronics and Programming Guides

September 01, 2022 (Last Updated: September 08, 2022) | Reading Time: About 1 minute

Discover helpful and inciteful tips that you can use in your electronics and programming projects. We are focused on home-brew electronics, specifically for home automation. We like to use MQTT, Home Assistant, Node-RED, and Zigbee along with Node MCU and Arduino. With this combination of electronics and programming, you can automate anything.

We share some information about electronics fundamentals as well as knowledge about more advanced topics in electronics. It is very helpful to learn fundamentals such as Ohm's Law and resister networks when you are building home automation circuits.

Here you can find guides and articles with creative ideas, tips, and advice about programming, electronics, and home automation.

When you mix programming and electronics together you get fun.

EFUNDIES.com currently provides articles and guides related to electronics and programming. When our site update is complete, we plan to offer source code collaboration. We will also be adding guides and articles about home automation, so check in often to see our new projects.

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Resistors in Series

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Some common components include capacitors and resistors, as well as transistors, LED displays, and chips.

Electronics Fundamentals

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Scale an Image in C# Preserving Aspect Ratio

If you need to change the size of an Image without changing the ratio of X to Y then this article tells you how.

You can use home automation to control just about anything you can think of.

Home Automation

You can use home automation to control almost anything that you can think of. Let's design your system from the ground up.

AVR chips come in many different sizes and shapes. Pictured is a PLCC socket.

AVR

The AVR microprocessor is the heart of most Arduinos. Instead of using the Arduino libraries, you can learn to program this chip directly with C++.

motor and sensitive device with caps

Intro to Capacitors

Capacitors are one of the fundamental building blocks of electronics. A solid understanding in what capacitors will help you in all electronics projects.

C# is a programming language created by Microsoft as a direct competitor to Java.

C# (C-Sharp) Programming Language - Tutorials, Code Examples, and More

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Learning Linux will help you with many different home automation projects.

Linux

When you get interested in home automation, you are eventually going to want to learn Linux.

How to compile ncmpcpp on CentOs 8

If you are new to compiling applications on Linux then this can be a bit daunting the first time you do it.

AVR Port Input Logic

In this guide we will write a program in C that makes some decisions based on the state of input pins.

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How to Understand Electronics Signals and Flow for Beginners

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AVR Port Input in C

### Connect PortB To Switches Remember how we connected **PORTA** to the **LEDS**. Now we are going to connect **PORTB** to the **SWITCHES**.

How To Read Schematics

Those pictures are called a schematic. A schematic is a picture representation of what we are talking about in electronics.

MQTT is the backbone of many home automation systems.

MQTT

MQTT is the backbone of many home automation systems. We consider MQTT to be the most important part of your home automation system.

Resistors in Parallel

Learn how to calculate the equivalent resistance of two resistors when they are wired in parallel.

Load an Image in C#

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Electronics topics include chips, capacitors, resistors, transistors, and building circuit boards.

Electronics

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What Is A Circuit

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How to Darken an Image in C#

In order to darken an image in C# you need to look at each pixel one at a time and decrease it's red, green, and blue values.

There are many different Arduinos to choose from, such as this Uno variety.

Arduino

Many home automation projects can be solved by simply "throwing an Arduino at it". Our Arduino articles show you how.

This MIDI controller can be used to play music, write tracks in a DAW, or just about any home automation you can think of.

MIDI

You can use MIDI to write songs, play music, control games, or even control your home automations.

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How to Prototype Electronics Projects

When experimenting with electronics, it is usually best to practice in what is called a Solderless Breadboard.

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You can get started programming with a simple setup. All it takes is a laptop and a cup of coffee.

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This modern LED lightbulb consumes 1/10th the energy of old-school incandescent bulbs.

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Begining Circuit Analysis and Ohms Law

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Node-RED makes writing home automations fast and easy.

Node-RED

Node-RED is the easiest way to manage your home automation rules. It couples well with Home Assistant and is much easier to program.

Perl may be an old language, but it is still the glue that holds many projects together.

Perl

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How To Create a OneNote Page from the Command Line

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What are Transistors and How do They Work?

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Getting Started with AVR

The beauty of AVR is that once you know how to deal with one of them, you know how to deal with all of them.

NodeMCU is one of our go-to chips for tackling various home automation projects.

NodeMCU

We use NodeMCU boards for almost every aspect of home automation. These inexpensive little power-houses can solve many home automation problems.

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